This patch implements the vector types (i.e:`float2`) by making heavy
usage of templating. All vector functions are now outside of the vector
classes (inside the `blender::math` namespace) and are not vector size
dependent for the most part.
In the ongoing effort to make shaders less GL centric, we are aiming
to share more code between GLSL and C++ to avoid code duplication.
####Motivations:
- We are aiming to share UBO and SSBO structures between GLSL and C++.
This means we will use many of the existing vector types and others
we currently don't have (uintX, intX). All these variations were
asking for many more code duplication.
- Deduplicate existing code which is duplicated for each vector size.
- We also want to share small functions. Which means that vector
functions should be static and not in the class namespace.
- Reduce friction to use these types in new projects due to their
incompleteness.
- The current state of the `BLI_(float|double|mpq)(2|3|4).hh` is a
bit of a let down. Most clases are incomplete, out of sync with each
others with different codestyles, and some functions that should be
static are not (i.e: `float3::reflect()`).
####Upsides:
- Still support `.x, .y, .z, .w` for readability.
- Compact, readable and easilly extendable.
- All of the vector functions are available for all the vectors types
and can be restricted to certain types. Also template specialization
let us define exception for special class (like mpq).
- With optimization ON, the compiler unroll the loops and performance
is the same.
####Downsides:
- Might impact debugability. Though I would arge that the bugs are
rarelly caused by the vector class itself (since the operations are
quite trivial) but by the type conversions.
- Might impact compile time. I did not saw a significant impact since
the usage is not really widespread.
- Functions needs to be rewritten to support arbitrary vector length.
For instance, one can't call `len_squared_v3v3` in
`math::length_squared()` and call it a day.
- Type cast does not work with the template version of the `math::`
vector functions. Meaning you need to manually cast `float *` and
`(float *)[3]` to `float3` for the function calls.
i.e: `math::distance_squared(float3(nearest.co), positions[i]);`
- Some parts might loose in readability:
`float3::dot(v1.normalized(), v2.normalized())`
becoming
`math::dot(math::normalize(v1), math::normalize(v2))`
But I propose, when appropriate, to use
`using namespace blender::math;` on function local or file scope to
increase readability.
`dot(normalize(v1), normalize(v2))`
####Consideration:
- Include back `.length()` method. It is quite handy and is more C++
oriented.
- I considered the GLM library as a candidate for replacement. It felt
like too much for what we need and would be difficult to extend / modify
to our needs.
- I used Macros to reduce code in operators declaration and potential
copy paste bugs. This could reduce debugability and could be reverted.
- This touches `delaunay_2d.cc` and the intersection code. I would like
to know @howardt opinion on the matter.
- The `noexcept` on the copy constructor of `mpq(2|3)` is being removed.
But according to @JacquesLucke it is not a real problem for now.
I would like to give a huge thanks to @JacquesLucke who helped during this
and pushed me to reduce the duplication further.
Reviewed By: brecht, sergey, JacquesLucke
Differential Revision: https://developer.blender.org/D13791
Fixes issue T94603
It adds a new compositor node called Scene Time which is already present as a geo node, having the same basic nodes available in all node trees is a nice thing to have.
Renames "Time" node to "Time Curve", this is done to avoid confusion between the Time node and the Scene Time node.
Reviewed By: jbakker
Maniphest Tasks: T94603
Differential Revision: https://developer.blender.org/D13762
This patch implements the vector types (i.e:float2) by making heavy
usage of templating. All vector functions are now outside of the vector
classes (inside the blender::math namespace) and are not vector size
dependent for the most part.
In the ongoing effort to make shaders less GL centric, we are aiming
to share more code between GLSL and C++ to avoid code duplication.
Motivations:
- We are aiming to share UBO and SSBO structures between GLSL and C++.
This means we will use many of the existing vector types and others we
currently don't have (uintX, intX). All these variations were asking
for many more code duplication.
- Deduplicate existing code which is duplicated for each vector size.
- We also want to share small functions. Which means that vector functions
should be static and not in the class namespace.
- Reduce friction to use these types in new projects due to their
incompleteness.
- The current state of the BLI_(float|double|mpq)(2|3|4).hh is a bit of a
let down. Most clases are incomplete, out of sync with each others with
different codestyles, and some functions that should be static are not
(i.e: float3::reflect()).
Upsides:
- Still support .x, .y, .z, .w for readability.
- Compact, readable and easilly extendable.
- All of the vector functions are available for all the vectors types and
can be restricted to certain types. Also template specialization let us
define exception for special class (like mpq).
- With optimization ON, the compiler unroll the loops and performance is
the same.
Downsides:
- Might impact debugability. Though I would arge that the bugs are rarelly
caused by the vector class itself (since the operations are quite trivial)
but by the type conversions.
- Might impact compile time. I did not saw a significant impact since the
usage is not really widespread.
- Functions needs to be rewritten to support arbitrary vector length. For
instance, one can't call len_squared_v3v3 in math::length_squared() and
call it a day.
- Type cast does not work with the template version of the math:: vector
functions. Meaning you need to manually cast float * and (float *)[3] to
float3 for the function calls.
i.e: math::distance_squared(float3(nearest.co), positions[i]);
- Some parts might loose in readability:
float3::dot(v1.normalized(), v2.normalized())
becoming
math::dot(math::normalize(v1), math::normalize(v2))
But I propose, when appropriate, to use
using namespace blender::math; on function local or file scope to
increase readability. dot(normalize(v1), normalize(v2))
Consideration:
- Include back .length() method. It is quite handy and is more C++
oriented.
- I considered the GLM library as a candidate for replacement.
It felt like too much for what we need and would be difficult to
extend / modify to our needs.
- I used Macros to reduce code in operators declaration and potential
copy paste bugs. This could reduce debugability and could be reverted.
- This touches delaunay_2d.cc and the intersection code. I would like to
know @Howard Trickey (howardt) opinion on the matter.
- The noexcept on the copy constructor of mpq(2|3) is being removed.
But according to @Jacques Lucke (JacquesLucke) it is not a real problem
for now.
I would like to give a huge thanks to @Jacques Lucke (JacquesLucke) who
helped during this and pushed me to reduce the duplication further.
Reviewed By: brecht, sergey, JacquesLucke
Differential Revision: http://developer.blender.org/D13791
The main issue was the use of `G_MAIN` during file load.
This patch refactors the code so that iterating over `G_MAIN`
is not necessary anymore. See D13800 for more details.
Differential Revision: https://developer.blender.org/D13800
Reduction of the number of uses of the define BLF_DRAW_STR_DUMMY_MAX
by using actual sizes of static character arrays.
See D13793 for more details.
Differential Revision: https://developer.blender.org/D13793
Reviewed by Campbell Barton
rBeed45d2a239a introduced a GPU backend for OpenSubDiv which lets us do
the subdivision at render time. However, some tools might still need to
have the subdivision data available on the CPU side. For this a
subdivision mesh wrapper was also introduced, and is computed whenever a
CPU side mesh is needed. The subdivision settings for this wrapper are
stored during modifier evaluation if GPU subdivision can be done.
The performance regression is due to the fact that although the
subdivision mesh was already computed on the CPU, and no subdivision
wrapper is generated, some checks for creating subdivision data in
`BKE_mesh_wrapper_ensure_subdivision` where still run, one of which is
very expensive.
To fix this we first check the runtime settings of the mesh to see if
subdivision is needed at all.
This commit adds topology information from mesh data structs to the
spreadsheet when the debug value `4001` is set. Eventually we could
expose these. For now it can be a useful tool for developers when
working on mesh algorithms.
Differential Revision: https://developer.blender.org/D13735
The value of this flag was only retrieved in `nodeGetActiveID`, which
wasn't used anywhere. Other than that, the `NODE_ACTIVE_ID` and
related functions seem to come from the Blender internal renderer.
Differential Revision: https://developer.blender.org/D13770
This commit moves the normal field input to `BKE_geometry_set.hh`
from the node file so that normals can be used as an implicit input to
other nodes.
Differential Revision: https://developer.blender.org/D13779
rBd6891d9bee2b introduced a way to apply a single constraint from the
constraint stack. For this we want to work in the evaluated domain, in
particular the constraint target should be evaluated (the shrinkwrap
constraint needs to have access to the target's evaluated mesh).
Thx a lot to @sergey for handholding here!
Maniphest Tasks: T94600
Differential Revision: https://developer.blender.org/D13765
Compositor node to convert between color spaces.
Conversion is skipped when converting between the same color spaces or to or from data spaces.
Implementation done for tiled and full frame compositor.
Reviewed By: Blendify, jbakker
Differential Revision: https://developer.blender.org/D12481
The dangling pointer caused errors further down the line.
The solution is to simply delete an internal link when one
of the corresponding sockets is removed (just like normal
links are removed as well).
Simplify signature of `BKE_lib_override_library_resync` and make it a
shallow wrapper around new internal `lib_override_library_resync` that
can then be easily extended for other internal needs.
Not functional changes expected here.
Request from studio, to help identify quickly libs that need update.
NOTE: Currently only outputing INFO log in console, display of this info
in the outliner will come in a separate commit.
Assert that only the file name component is passed in
since special handling for UDIM should only be applied to the file name.
Also remove an unnecessary NULL check on the filename argument.
Remove `const` from pass-by-value parameters in function declarations.
The variables passed as parameters can never be modified by the function
anyway, so declaring them as `const` is meaningless. Having the
declaration there could confuse, especially as it suggests it does have
a meaning, training people to write meaningless code.
Remove `const` from pass-by-value parameters in function declarations.
The variables passed as parameters can never be modified by the function
anyway, so declaring them as `const` is meaningless. Having the
declaration there could confuse, especially as it suggests it does have
a meaning, training people to write meaningless code.
Error in ffc4c126f5,
which moved doc-strings from implementation into headers.
Some changes in BKE_animsys.h needed to done manually as there
were already doc-strings in both the header and implementation
(with overlapping information).
When making these changes some doc-strings were removed unintentionally.
Thanks for @sybren for the heads up.
Overrides that are not created as part of an override hierarchy should
not be handled through (auto)resync at all. users are responsible to
hanlde those updates if they need it.
This is achieved by flagging overrides created outside of a hierarchical
process accordingly, and skipping them during resync process.
This case wasn't handled in rBf5ce243a56a22d718 correctly.
Now `object_get_evaluated_geometry_set` just returns a geometry
set that contains the collection instance for collection instance objects.
Since 2.8, background images are tied to cameras (in 2.79 these were
tied to a View3D I think).
Code in `BKE_library_id_can_use_idtype` wasnt taking this relation
between `Camera` and `Image` into account, thus leading to ID deletion/
unlinking not working properly -- in particular `libblock_remap_data`
not doing its thing (and leaving the camera as a user of the image),
then things went downhill from there...
Now make the "Camera-can-use-an-Image" relation clear in
`BKE_library_id_can_use_idtype`.
Maniphest Tasks: T94544
Differential Revision: https://developer.blender.org/D13722
This flag is only used a few small cases, so instead
of setting the flag for every node only set the
required flag for the nodes that require it.
Mostly the flag is used to set `ntype.flag = NODE_PREVIEW`
For nodes that should have previews by default which
is only some compositor nodes and some texture nodes.
The frame node also sets the `NODE_BACKGROUND` flag.
All other nodes were setting a flag of 0 which has no purpose.
Reviewed By: JacquesLucke
Differential Revision: https://developer.blender.org/D13699
Compare the start of the range to zero to figure out whether the
indices for the instances to keep starts at zero. Also rename the
selection argument, since it made it seem like the selected indices
should be removed rather than kept.
Calculates the angle in radians between two faces that meet at an edge.
0 to PI in either direction with flat being 0 and folded over on itself PI.
If there are not 2 faces on the edge, the angle will be 0.
For valid edges, the angle is the same as the 'edge angle' overlay.
For the Face and Point domain, the node uses simple interpolation to calculate a value.
Differential Revision: https://developer.blender.org/D13366
This implements the design detailed in T92696 to support virtual
filenames for UDIM textures. Currently, the following 2 substitution
tokens are supported:
| Token | Meaning |
| ----- | ---- |
| <UDIM> | 1001 + u-tile + v-tile * 10 |
| <UVTILE> | Equivalent to u<u-tile + 1>_v<v-tile + 1> |
Example for u-tile of 3 and v-tile of 1:
filename.<UDIM>_ver0023.png --> filename.1014_ver0023.png
filename.<UVTILE>_ver0023.png --> filename.u4_v2_ver0023.png
For image loading, the existing workflow is unchanged. A user can select
one or more image files, belonging to one or more UDIM tile sets, and
have Blender load them all as it does today. Now the <UVTILE> format is
"guessed" just as the <UDIM> format was guessed before.
If guessing fails, the user can simply go into the Image Editor and type
the proper substitution in the filename. Once typing is complete,
Blender will reload the files and correctly fill the tiles. This
workflow is new as attempting to fix the guessing in current versions
did not really work, and the user was often stuck with a confusing
situation.
For image saving, the existing workflow is changed slightly. Currently,
when saving, a user has to be sure to type the filename of the first
tile (e.g. filename.1001.png) to save the entire UDIM set. The number
could differ if they start at a different tile etc. This is confusing.
Now, the user should type a filename containing the appropriate
substitution token. By default Blender will fill in a default name using
the <UDIM> token but the user is free to save out images using <UVTILE>
if they wish.
Differential Revision: https://developer.blender.org/D13057
In the past that worked because the `GPUMaterial` referenced the
`ImageUser` from the image node. However, that design was incompatible
with the recent node tree update refactor (rB7e712b2d6a0d257d272e).
Also, in general it is a bad idea to have references between data that is
owned by two different data blocks.
This incompatibility was resolved by copying the image user from the node
to the `GPUMaterial` (rB28df0107d4a8). Unfortunately, eevee depended
on this reference, because the image user on the node was update when the
frame changed. Because the image user was copied, the image user in the
`GPUMaterial` did not receive the frame update anymore.
This frame update is added back by this commit. The main change is that
the image user iterator now also iterates over image users in `GPUMaterial`s
on material and world data blocks. An issue is that these materials don't
exist on the original data blocks and that caused the check in
`build_animation_images` in the depsgraph to give the wrong answer.
Therefore the check is extended.
Right now the check is not optimal, because it results in more depsgraph
nodes than are necessary. This can be improved when it becomes cheaper
to check if a node tree contains any references to a video texture.
The node tree update refactor mentioned before makes it much easier
to construct this kind of run-time data from the bottom up, instead of
scanning the entire node tree recursively every time some information
is needed.
This just skips the entire algorithm when there are cycles.
In the future, cycles could be handled more gracefully in the
algorithm, but for now that's not worth it and is not necessary
to fix the bug.
This is analagous to 6a71b2af66 which did the same
thing for mesh data. Two differences are that here the coordinates
are simply `float3`, and we account for the radius if it's available.
Here I observed a similar performance increase, from 50ms
average to 10ms average, with 16 million points, a 5x speedup.
The calculation is about 1.4 times faster when no radius is used, down
to 7.3ms average. Before, the calculation was only 1.2 times faster.
This was caused by a mistake in eb0eb54d96, which removed
the clearing of the curve edit mode pointers that are set when creating
the temporary data for the conversion. If they are not cleared, the
generic ID free function will also free the edit mode data, which is
wrong when the source curve is in edit mode.
This just moves the relations update to a lower level function that is used
by other functions. Eventually, the special case for this node should be
generalized.
Ever since the instance domain was added, this was exposed, it just
didn't do anything. This patch implements the instances domain in the
delete and separate geometry nodes, where it acts on the top-level
instances.
We act on a mutable instances input, with the idea that eventually
copy on write attribute layers will make this less expensive. It also
allows us to keep the instance references in place and to do less
work in some situations.
Ref T93554
Differential Revision: https://developer.blender.org/D13565
This function node creates a running total of a given Vector, Float, or
Int field.
Inputs:
- Value: The field to be accumulated
- Group Index: The values of this input are used to aggregate the input
into separate 'bins', creating multiple accumulations.
Outputs:
- Leading and Trailing: Returns the running totals starting
at either the first value of each accumulations or 0 respectively.
- Total: Returns the total accumulation at all positions of the field.
There's currently plenty of duplicate work happening when multiple outputs
are used that could be optimized by a future refactor to field inputs.
Differential Revision: https://developer.blender.org/D12743
A few typos in 17770192fb lead to an incorrect count of custom
data layers in the test meshes. We only want to consider layers that are
not anonymous, and there was a copy and paste mistake.
`GeometrySet::compute_boundbox_without_instances` may not initialize min
max in some cases such as meshes without vertices.
This can result in a Bounding Box with impossible dimensions
(min=FLT_MAX, max=-FLT_MAX).
So repeat the same solution seen in `BKE_object_boundbox_calc_from_mesh`
and set boundbox values to zero.
Reviewed By: HooglyBoogly
Differential Revision: https://developer.blender.org/D13664
